Sheet-delivery apparatus for printing-presses.



No. 642,806. Patented Feb. 6, I900.

W. SCOTT. SHEET DELIVERY APPARATUS FOR PRINTING PRESSES.

(Application filed Feb. 2, 1897.) (No Model.) 4 Sheets-Sha et 2,

N WITNESSES; N OR: 7

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No. 642,806. Patented Feb. 6, I900.

W. SCOTT.

SHEET DELIVERY APPARATUS FOR PRINTING PRESSES.

(Application fi led Feb. 2, 1897'.)

4 Sheets8heet 3.

(No Model.

I I 1 v WITNESSES: I I II INVENT R:

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No. 642,806. Patented Feb. 6, I900. W. SCOTT.

SHEET DELIVERY APPARATUS FOR PRINTING PRESSES.

{Ap lication filed Fab. :2, 1897.) (No Model.) 4 Sheets-Sheet 4.

WITNESSES: INVENTOR:

By lzzx AZ/omey I UNITED STATES PATENT OFFICE.

\VALTER SCOTT, OF PLAINFIELD, NEW JERSEY.

SHEET-DELIVERY APPARATUS FOR PRINTING-PRESSES SPECIFICATION forming partof Letters Patent No.'642,80 6, dated February 6, 1900.

Application filed February 2, 1897. Serial No. 621,676 (No model.) i

To alZ whom it may concern.-

Be it known that I, WALTER Soorr, a citizen of the United States, and aresident of Plainfield, in the county of Union and State of New Jersey,have invented certain new and useful Improvements in Sheet-DeliveryApparatus for Printing-Presses, of which the following is aspecification.

This invention relates to mechanism for delivering sheets of paper orthe like upon flat tables or receivers.

The invention is intended for use in conjunction with a printing-presswhich delivers printed sheets, the object of the invention-being to laythe sheets on the table or receiver with the freshly-printed sideuppermost.

To this and other ends the invention consists of combinations of deviceshereinafter described, and more particularly pointed out in the claimsconcluding this specification.

The preferred form of the invention is illustrated in the accompanyingdrawings, forming part hereof, in which Figure 1 is a side elevation ofone end of a printing-press in which the invention is embodied. Fig. 2is a plan View of the mechanism shown in Fig. 1. Fig. 3 is a view,partly in section, from the delivery end of the press, showing certaindetails, enlarged, of the mechanism shown in Figs. 1 and 2; and Fig. 4is a view from the side of the press, showing some of the details shownin Fig. 3. view, partly in section, taken on a plane between theleft-hand carrier G and the ratchetwheel 0 in Fig. 3.

In all the figures of the drawings no more of the press and itsmechanism is shown than is necessary to indicate the positions andrelations thereof to the present invention.

I have illustrated the invention in conjunction with a bed and cylinderprinting-press whose cylinder 0 revolves continuously, though it isimmaterial to the invention what may be the kind of press used forprinting. The impression-cylinder 0 shown is provided with grippers 33,which take the sheets fed from the feed-board 34, and withlifting-fingers 35, which lie under the head of the sheet while thelatter is receiving the impression and lift the head of the printedsheet onto the guides 32. These guides 32 are borne by a rod or shaft31, which is fixed in the frame- Fig. 5 is awork F of the machine andproject therefrom to near the impression-cylinder, as shown, in positionto receive the sheets from the fingers 35 and guide them to flexiblesheet-bearer 25. The sheet-bearer 25 is composed of a sheet of fabricor, by preference, of a set of ribbons, and has. its ends attached to aroller S, which is journaled in the frame F underneath the guides 32,and to the traveler-roller T.

The roller S is intended for winding up the bearer 25 periodically orwhen the parts of the invention are in certain positions, and for thispurpose it may be operated by any suitable means. I prefer to make theroller S self-operating or automatic, which may be conveniently done byconstructing it in the form of a hollow cylinder 27, which is providedat one end with the journal 28, which rests in a suitable bearing in theframe F, and at the other end with a hollow bearing or journal whichfits over the stud-bearing 29 on the frame F. Inside the cylinder 27 isplaced a spiral spring 30, whose ends are fast, respectively, to thestud 29 and to the solid head or journal 28, and is arranged to turn thetop of the cylinder 27 toward the cylinder 0. The bearer 25 may have oneend fast to the cylinder 27 or to collars 26 on said cylinder.

The traveler-roller T (shown in the drawings) consists of the hollowshaft 18 and a series of collars 24 on said shaft, the collars beingequal in number to the ribbons forming the bearer 25 and the ends of thelatter being fast to the collars. The shaft 18 may be journaled at bothends in blocks G, which are slidable upon and guided by the frame F orsome part attached thereto, or the shaft 18 may be journaled ashereinafter set forth. The shaft 18 is preferably provided with a bossor collar u, whose periphery is provided with a spiral groove or worm23. This boss is placed near one end of the shaft 18. That one of blocksG which is adjacent the boss u is provided with the guide 22, on whichthe stop 21 slides to and fro, the stop engaging with IOO f. This pawlfmay be provided with an anti- The mechanism shown for operating theroller T includes the shaft 17, which is placed within the hollow shaft18 and is journaled at one end in said shaft 18 and at its other end inone of the blocks G. At its latter end the shaft 1'7 forms the bearingfor the shaft 18. The shaft 17 is provided with two pinions a and b, ofunequal sizes, which are fast thereto. The larger of said pinions, as b,is provided with a pawl j", which is pivoted thereto, as at g, and thecatch h, which is also pivoted thereto, as at i. A spring (shown as aleaf-spring Z, fast to the pinion) pushes the catch 72. toward the toothorpin k on the pawl friction-roller e at one end, the other end of thepawl being intended for coaction with the ratchet-Wheel c, which is faston the shaft 18, above named. When the pawl fcoacts with said wheel 0,the two shafts 17 18 are connected together, so that the rotation of thefirst in onedirection also causes the rotation of the second in the samedirection. The frame F, near'one, extreme of the excursion or roller T,is provided with a pin or projection (1, against which the catch himpinges and by which the catch is moved from under the tooth 7c, thusallowing pawl f to fall or be thrown by a suitably-placed spring (notshown) into gear with ratchet c. The frame F is provided with the camsurface or incline m opposite the point where the inner end of thereceiver 36 is placed. This incline m is for the purpose of throwing thepawlfout of gear with the ratchet-wheel c, the roller e running up onsaid incline m and allowing catch h to engage under the tooth is. Inorder to give the catch 77. ample time for engaging under the tooth is,the surface m may be continued as a dwell or horizontal surface it thatblock G, which is adjacent the boss to, may have a brake-shoe p pivotedthereto, as at q, for coaction with the said boss for the purpose ofstopping or slowing the rotation of roller T at times. This brake-shoeis thrown into contact with the boss u by suitable means, as the inclineT, which is pivoted to the frame F, as at s, and rests on the adjustablepin 15 on the frame. The brake-shoe 19 may have an antifriction-roller 0thereon for coaction with the incline r.

There are by preference two equal pinions b on the shaft 17, and thesemesh with the two-part rack 20, which is fast to or forms a part of theframe F. In effect the two pinions and the shaft on which they are fastconstitute but a single pinion, and the two racks 20 constitute but asingle rack. The pinion a meshes with the movable rack 16, which issuitably guided on the frame F, so as to have a to-and-fro motionparallel with the rack 20. The rack 16 is driven to and fro by the ion14, with which it is in mesh, the; n which carries said pinion 14 and thgear 13, the miter-gear 12, the shaft 1f to which gear 12 is fast, thepinion 10, mat on shaft 11, the reciprocating rack 9, connectingrod 7,which is pivotally attached to rack 9, as at 8, and to the crank-pin 6,which is borne by the crank 5. A revoluble shaft or stud at carries thecrank 5 and is preferably operated by means of elliptical or lobel gears3, one of which is fast thereto and the other of which is fast to therevoluble shaft 38. The pulleys (not shown) by which the press is drivenmay be carried by said shaft 38. A train of gearing 2 connects shaft 38with the impression-cylinder C.

The parts being in the positions indicated in the drawings, the cycle ofoperations is as follows: Shaft 38 being set in motion, the crank-pin 6moves upwardly, and its motion transmitted through the described trainof gearing causes the rack 16 to be moved to the right in Figs. 1, 2,and 4. Since the pinion b is larger than the pinion a, (the drawingsshow them in the proportion of two to one,) it follows that'shaft 17 ismoved to the right in said figures faster than the rack 16 andcarrieswith it the roller Tand blocks G. With the proportions of pinions a andb, above named, these motions areas two to one. As the traveler-roller Tis moved to the right the brake p is released, whereupon the roller Tpulls the bearer off theroller S as it (T) moves away from the cylinder0. The arrangement of the parts is such thatthe sheet from the cylinderC has beenreleased by thegrippers 33, has been lifted onto the guides 32by the fingers 35,'and run out on the bearer25 until its head hasreached the roller T, or nearly thereto, before the parts begin to movefrom the. positions shown in the drawings. The sheet remains on thebearer-until the roller T reaches the limit of its travel away from thecylinder 0, when the lug cl moves the catch h from under the pin ortooth 76, thus releasing the pawl f, which thereu pon' engages with theratchet-wheel c. The crank-pin 6 having moved through one hundred andeighty degrees by this'time, the parts T a b 16 17 begin their returntoward the cylinder 0, and the roller T winds up the bearer 25 as it (T)rolls away from under the sheet, which thereupon falls head first ontothe board 36. The rollerT continues to wind up the bearer 25 until theroller e and the incline m moves thepawl font of mesh with theratchet-wheel c, whereupon the roller S unwinds the bearer 25 from theroller T onto itself. At the beginning of the winding from rollerT ontoroller S the stop 21 is near the frame Gand in the worm 23. The releaseof roller T permits roller S to rotate it through the medium of thetapes and the rotation of the roller T and the worm 23 during suchunwinding and winding moves stop 21 outward on the pin 22. Duringthe'win'ding and unwinding referred to the roller Tis moving toward thecylinder, and as these near completion the brake p is actuated by thecam or incline r and graduallychecks the speed of said winding andunwinding, and just as said winding and unwinding is almost completedthe stop 21 strikes the buffer 21 Iio .ing rate of speed, rotating thewhile. is the preferred adjustment of these gears and stops the rotationof both rollers S T at the moment the rack 9 comes to rest.

It will be observed that the arrangement of the elliptical gears 3 issuch that the roller T moves fastest to and fro when nearest thecylinder 0. 7 Thus it runs out at a decreasing rate of speed, notrotating the while, and runs in toward the cylinder 0 at an increas-This only. Of course the adjustment may be varied with correspondingeffect on the speed of the roller T to and fro.

In so far as certain featuresof my invention are concerned it isimmaterial whether an automatic roller S be employed. Thus the sheet maybe shot out onto the bearer from the cylinder C as the roller T runs outfast under the operation of the gears 3, the bearer 25 being wound andunwound on the roller T only and being fastened to a member on the framewhere the roller S is held in the drawings. The clutch audits operatingmeans would be omitted in this case and the roller T be fast to the gearI). I do not, therefore,

limit myself to the forms of the invention hereinbefore described, sincethe same may be varied in many other ways without departing from thespirit thereof. 1

What I claim is 1. In a sheet-delivery, the combination of aspring-roller journaled in the framework, the traveler-roller, asheet-bearer fast at its ends to said rollers, mechanism for moving saidtraveler-roller to and fro, a clutch for connecting said traveler-rollerand its said operating mechanism, and mechanism for periodicallythrowing said clutch into and out of operation, substantially asdescribed.

2. In a sheet-delivery, the combination of a roller journaled in theframework, a traveler-roller, a sheet-bearer fast at its ends to saidrollers, mechanism for moving said traveler-roller to and fro, a clutchfor connecting said traveler-roller and its said operating mechanism,mechanism for periodically throwing said clutch into and out ofoperation, and means for operatingsai d first-named roller to cause itto periodically wind up the said bearer, substantially as described. 3.In a sheet-delivery, the combination of a spring-roller journaled in theframework, a traveler-roller, asheet-bearer fast at its ends to saidrollers, mechanism for moving said traveler-roller to and fro, andmechanism for periodically connecting said travelerfor operating saidfirst-named roller to cause it to periodically wind up saidsheet-bearer, substantially as described.

5. The combination of an automatic roller j ournaled in the framework, atraveler-roller, a sheet-bearer connecting said rollers, thetoand-fro-movable rack 16, mechanism for operating said rack, the piniona, meshing with said rack, the fixed rack 20, the pinion 12 (larger thanpinion a meshing with rack '20, the shaft 17 to which said pinions abare fast, a clutch for connecting said pinion b and saidtraveler-roller, and mechanism for periodically throwing said clutchinto and out of operation, substantially as described.

6. The combination of an automatic roller journaled in the framework,the traveler-' roller, the sheet-bearer connecting said rollers, theratchet-wheel c on said traveler-roller, the shaft 17, mechanism forrotating said shaft 17 alternately in opposite directions, the pawl foperated or carried by said mechanism, the spring-catch, the tooth is onsaid pawl with which the catch coacts, the lug d on the frame foroperating said catch, and the incline m on the framework, substantiallyas described.

7. The combination of an automatic roller journaled in the framework, atraveler-roller, the sheet-bearer connecting said rollers, theratchet-wheel c on said traveler-roller, the shaft 17, the fixed rack20, the pinion b meshing with rack 20, the pawl f carried by pinion b,the tooth It on said pawl, the spring-catch, the lug d on the frameworkfor-operating the catch, the incline m on the framework, the pinion a(smaller than pinion b) on the shaft 17, the to and-fro-movable rack 16meshing with pinion a, and mechanism for operating rack 16,substantially as described.

8. The combination of an automatic roller journaled in the framework,atraveler-roller, the sheet-bearer connected at its ends to saidrollers, the slide-stop 21, the worm 23 closed at one end for operatingsaid slide-stop, the shaft 17, the ratchet-wheel 0 fast on saidtraveler-roller, the pawl f, the spring-catch, the tooth is on saidpawl, the lug don the frame, the incline m, and mechanism for rotatingsaid shaft 17 in opposite directions and operating said pawl,substantially as described.

9. The combination of an automatic roller journaled in the framework, atraveler-roller, the sheet-bearer connected at its ends to said rollers,the stop 21, the worm 23 closed at one end for operating said stop,mechanism for moving said traveler-roller to and fro, a clutch forconnecting said traveler-roller and its said operating mechanism, andmechanism for pcriodically throwing said clutch into and out ofoperation, substantially as described.

10. The combination of an automatic roller in the framework, atraveler-roller, a discontinuous sheet-bearer connected to said rollers,the stop 21, the worm 23 closed at one end for operating said stop,mechanism for moving said traveler-roller to and fro, and mechanism forperiodically connecting and discon- IIO ne'cting saidtraveler-roller-and its said operating mechanism, substantially asdescribed.

11. The combination ofanautomaticspringroller in the framework, atraveler-roller, a discontinuous sheet-bearer connecting said rollers,and mechanism for moving said traveler-roller to and fro and windingsaid bearer on said rollers alternately, substantially as described.

12. The combination of an automaticroller in the frame, atraveler-roller, a discontinuous sheet-bearer connected to said rollers,and

traveler-roller-operatin g mechanism'provided with anautomatically-operated clutch for periodically connecting saidtraveler-roller with its said operating mechanism to be rotated therebyand disconnecting it therefrom, substantially as described.

13. The combination of a roller in the framework, the traveler-roller, asheet-bearer connected at its ends to saidrollers, mechanism for movingsaid traveler-roller to-and fro and winding said bearer alternately'onsaid rollers, a brake for said traveler-roller, and an incline foroperating said brake, substantially as described.

14.. The combination of a roller in 1 the frame, a traveler-roller, thesheet-bearer conmeeting said rollers, mechanism for moving saidtraveler-roller to and fro and winding said bearer on said rollersalternately, a brake for said traveler-roller, an incline for operatingthe brake, the Worm closedat oneend on said traveler, and the movablestop coacting with said worm, substantially as described.

15. The combination of a roller in the frame, a traveler-roller, asheet-bearer connecting said rollers, mechanism for moving saidtraveler-roller to and fro-andwinding said bearer on said rollersalternately, a brake for the traveler-roller, a pivoted incline foroperating said brake, and means for adjusting the position of theincline, substantially as described.

16. The combination of-an automatic roller journaled in the frame,atraveler-roller, a sheet-bearer between said rollers, mechanism formoving said traveler-roller to and fro, an automatically operated'clutchfor periodically connecting said traveler-roller with said mechanism toberotated thereby and disconnecting it therefrom, a brake for saidtraveler-roller, and means for operating said brake, substantially asdescribed.

17. The combination of an automatic roller in the frame, atraveler-roller, asheet-bearer connecting said rollers, mechanism formoving said traveler-roller to and fro, an automatically operated clutchfor periodically connecting said traveler ro1ler with said mechanism tobe rotated thereby and disconnecting it therefrom, a brake for saidtrav-' eler-roller, and adjustable mechanism for operating said brake,substantially as described.

18. llhe combination of an automatic roller erated by said worm,substantially as described.

19. The combination of a roller in the frame, a traveler-roller, adiscontinuous sheet-bearer connected at its ends to said rollers, theworm closed at one end and carried bysaid traveler-roller, theslide-stop coacting with said worm, and mechanism for moving saidtraveler-roller to and fro and winding said bearer on said rollersalternately, substantially as described.

'20. The combination of an automatic roller in theframe,atraveler-roller,-a discontinuous sheet-bearer connected at its ends tosaid rollers, the worm connected-with said travelerroller andv closed atone end, the movable stop coacting with said worm, and mechanismprovided withanautomatically-operated clutch periodically connectingsaid travelerroller with said mechanism to be rotated thereby anddisconnecting it therefrom for moving said roller to and fro,substantially as described 21. The combination of a roller journaled inthe framework, a traveler-roller,adiscontinuoussheet-bearer fast to saidrollers, mechanism for winding the bearer on said rollers alternately,aworm on said traveler-roller, a stop engagingand operatedby the worm,and a buffer for said stop, substantially as described.

22. The combination of an automatic roller in the'framework, atraveler-roller, a discontinuous sheet-bearer fastto said-rollers, theworm connected with said traveler-roller, a bufier insaidworm at one endthereof, amovable stop coactingwithsaidworm and buffer, and mechanismprovided with an automat ically-operatedclutch periodically connectingsaid traveler-roller withsaid mechanism to be rotated thereby anddisconnecting it therefrom for moving said roller to and fro,substantially as described.

23. The combination of a roller journaled in the framework, the hollowtraveler-roller, a discontinuous sheet-bearerfast to said rollers, theshaft 17 within said hollow roller, the large and small pinions fast tosaid shaft 17, the fixed rack 20 meshing with the larger of saidpinions, and mechanism for operating said roller in the framework andfor'rotating said smaller pinion alternately in opposite directions,with mechanism including an automatically operated clutch for connectingand disconnecting the shaft 17 with the hollow roller, substantially asdescribed.

24. The combination of the hollow travelerroller, the shaft 17 withinsaid hollow roller,

the fixed rack 20, the large and small pinions b a on the shaft 17 thelarger pinion meshing with the rack 20, the movable rack meshing withthe smaller pinion, and mechanism for moving the movable rack to andfro, with a clutch for connecting the shaft 17 and the hollow roller,mechanism for periodically opening and closing said clutch, a rollerjournaled in the framework, means for operating the last-named roller,and a discontinuous sheet-bearer fast to the two said rollers,substantially as described.

25. The combination of the automatic roller S journaled in theframework, the hollow traveling roller T, the bearer fast to saidrollers S T, the worm 23 on the roller T, the guided stop 21 operated bythe worm, the buffer 21 in said worm, the shaft 17 within the roller T,the ratchet-wheel c on the shaft 17, the pawl f connected with the shaft17, the spring-catch h and pin 70, the lug d on the framework, theincline m on the frame, and mechanism for moving the shaft 17 to and froand rotating it alternately in oppo-' site directions, substantially asdescribed.

26. The combination of an automatic roller in the framework, thetraveler-roller, the discontinuous sheet-bearer fast to the saidrollers, mechanism provided with elliptical gears for moving saidtraveler-roller to and fro and rotating the same said mechanismcontaining a clutch, and mechanism for periodically throwing said clutchinto and out of operation, substantially as described.

-27. In an extensible collapsible sheet-delivery device, ato-and-fro-moving roller, the sheet-bearer fast to said roller, thefixed rack, the movable rack 16, the pinion connected with the saidroller and meshing with the fixed rack, a second pinion smaller than andconnected with the first-named pinion and meshing with the rack 16, andmechanism for moving said rack 16 to and fro, with a member on theframework to which the sheetbearer is also fast, substantially asdescribed. Signed at New York city, in the county of New York and Stateof New York, this th day of January, A. D. 1897. V

I VALTER SCOTT.

Witnesses:

E. D. OBRIEN,

RICHARD W. BARKLEY.

